fix: remove 0-dimension check blocking terminal fit and add debug logging

- Remove chicken-and-egg check that prevented fit() when cols/rows were 0
- Add console logging for container dimensions and fit results
- Add retry limit (50 attempts) for initial fit to prevent infinite loops

apps/web/src/components/terminal.tsx

@@ -229,8 +229,6 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
     // Define fitTerminal before connectWebSocket so it's available in onmessage
     const fitTerminal = () => {
       if (!fitAddonRef.current || !termRef.current) return;
-      // Ensure terminal is opened and has valid dimensions
-      if (termRef.current.cols === 0 || termRef.current.rows === 0) return;
       const oldCols = termRef.current.cols;
       const oldRows = termRef.current.rows;
       try {
@@ -240,8 +238,9 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
         return;
       }
       const { cols, rows } = termRef.current;
-      // Force refresh if dimensions changed and are valid
-      if ((cols !== oldCols || rows !== oldRows) && cols > 0 && rows > 0) {
+      console.log(`[Terminal] fit() result: ${cols}x${rows} (was ${oldCols}x${oldRows})`);
+      // Force refresh if dimensions are valid
+      if (cols > 0 && rows > 0) {
         try {
           termRef.current.refresh(0, rows - 1);
         } catch {
@@ -249,7 +248,7 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
         }
       }
       const currentWs = wsRef.current;
-      if (currentWs?.readyState === WebSocket.OPEN) {
+      if (currentWs?.readyState === WebSocket.OPEN && cols > 0 && rows > 0) {
         currentWs.send(JSON.stringify({ type: "resize", cols, rows }));
       }
     };
@@ -259,14 +258,20 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
     ws = connectWebSocket();
 
     // Initial fit after layout settles (terminal must be opened first)
+    let fitAttempts = 0;
     const doInitialFit = () => {
       if (!container.isConnected) return;
+      fitAttempts++;
       // Ensure container has dimensions before fitting
       if (container.clientWidth > 0 && container.clientHeight > 0) {
+        console.log(`[Terminal] Container ready: ${container.clientWidth}x${container.clientHeight} (attempt ${fitAttempts})`);
         fitTerminal();
-      } else {
-        // Container not ready yet, try again
+      } else if (fitAttempts < 50) {
+        // Container not ready yet, try again (max 50 attempts ~ 1s)
+        console.log(`[Terminal] Container not ready: ${container.clientWidth}x${container.clientHeight} (attempt ${fitAttempts})`);
         requestAnimationFrame(doInitialFit);
+      } else {
+        console.warn(`[Terminal] Container never got dimensions after ${fitAttempts} attempts`);
       }
     };
     requestAnimationFrame(doInitialFit);